
%0 Journal Article
%A Leach, SJ 
%A Lindley, H 
%T pK values and reactivity to nitrous acid of some glutamine and asparagine dipeptides
%J Australian Journal of Chemistry
%D 1954/03/01
%V 7
%N 1
%P 71-74
%K 
%R https://doi.org/10.1071/CH9540071
%U https://www.publish.csiro.au/paper/CH9540071 
%X Determinations are reported of the pK values of the amino- and carboxyl groups of the following peptides : glycyl-, L-leucyl-, and L-cysteinyl-L-asparagine, L-asparaginylglycine, glycyl-DL-glutamine, and L-leucyl-L-glutamine. It was observed that the pK of the amino-groups tended to be markedly reduced by the adjacent amide group. The reaction of these peptides (except L-cysteinyl-L-asparagine) with nitrous acid has also been investigated. The results are discussed in the light of recent suggestions on the structure of asparagine. 
